Angus h



A. H. GIBSON` CENTRIFUGAI. MACHINE.

.APPLICATION FILED Nov. 2o, 191s.

Patented 001. 21,1919.

Mfg/ffl ANGUs n. GIBSON, or SALT LAKE lMACHINE GOMEANY, QF. SALT To all whom t may concern Be it'known. that I, ANGUs H. GInsoN, citizen of the United States, and resident of Salt Lake City, v county of Salt Lake, State o f Utah, have invented certain new and useyfullmprovements in Centrifugal Machines,

of which the following is aspecification.

This invention relates to centrifugal inachines and has fo'rits object'the provision of 'a Simple and ei'i'ective arrangement by which the sugar that becomes walled 'up on the inside of the basket wallv as it is separated centrifugally from the Yliquid content of the syrup may be discharged by the employrnent of suitably directed blasts jofair so delivered as to breakup the annular wall of sugar by the disruptive force of the con-v fined airfso that the crumblingor disintegrated mass of sugar vmay' fall throughlthe central.V discharge opening in thev bottom of they basket. A

`He'retofore it has been the 'custom 'te' re-l -move'th'e walled-up sugar by directing a plow orscraper against the mass of the sugar content inthe rotating basket soas to break i down the sugar wall and cause the mass of sugar to be discharged through lthe central spiderl and such a discharger while quite lpractical for use involved considerable mechanicalV manipulation and the vparts are more or less subject to wear.

The present invention is based uponjthe principle of directing blasts of compressed air through suitable conduitsso as todisrupt the wall of sugar and cause it'to dro'p down by gravity tol the opening. The invention comprises essenf tially a centrifugal basket provided with a compressed, air supply pipe or conduit having branches arranged'in close proximity to the wall of the basket with ventopenings or outlets close to the basket that the compressed air passing through I said outlets forces the sugarmass inwardly ication and will cle below the basket.

away fromthe wall of the basket or screen so that it drops on the inclined bottom from the central spider into any suitable receptaf -This and other features of the invention will be particularly explained in this specibe definedl in the claims annexedhereto. Y In the accompanying drawings I have shown such parts of a centrifugalmachine :y Application filed-November 20, 1918. Serial No. 263,29

central discharge Y wall so arranged,1V

OFFICE.v l*

CITY, IITAII, AssIGNoE'To TH LAKE CITY, UTAH, A GOEPOE ;lcENTRIEIIcm1.Ernestina.

E WESTERN STATES ATION 0E UTAH;-

Specicaten of Lettersliatent. Patentedoct, $21 .191g

of the suspended type asis necessary to co'm-V Y prehend the principle said invention in Flgure l is a side elevation plartlylin central andl the suspend section showingthe usual surrounding ed centrifugal lbasket equippedwith my'nvention'.A fi Y LFIg. 2 is a plan view the basket and curb.

ini cross lsection of Fig. 3 'is a front .elevation of one vthe compressed air tubes `with its vents; and

.Figa is a transverse sectionofone of said ,air tubes showing'its' relation tothe basket and the basket n vthe practice ofm lining'. ,i y invention accordin to the form illustratedv in thefdrawings the centrifugal basket b having a sloping bottom Z910 is of the usualftype provided with a central orifice to receive the supporting spider by which th the rotary suspension ebasketi is secured V'to shaftc. i i

and practice' of my Y which Y Y The 'usual curb @is providedto surround i the basket and catch the liquid `contents thrown out centrifugally through, the preripheral- 'basket wall and its inside lining d.

Any suitable vconduit may be provided for supplying the compressed air to the vair blast tubes b? around the inside of t eral basket. Preferably a which are located at intervals.V

he vertical or peri-phslight space lis left between the outer surface of;V the discharger tube b3 and the wall of thebasket b toY allow the insertion of the usual lining or screenV d between the discharger. tubes and the basket wall'.`

.The lvertical, dischargige-ifYV con.` nectedby means of tubular arms b2 with a perforated central spi passages are in communication der b 'trally -bored basket 'shaft' c through which arms of the spider b ca suitable supply. of compressed airis furirushed,- to the individ ual discharger tubes. shown the radiating bored oroftubular form so that the spider may perform the onnecting the basket double function of c to the basket shaft fo r proper support, be#

side affording conduits forl the distribution tubes bt f radial pipe leading to which would involve of the V,air to the concentric discharger each discharger tube lling up vtoo largev a charge opening If. pre-V drawings, to provide whose interior with the een! i Y c Y As it is unnecessary to have a separateV Y an annular conduit b5 eXtending around thek atev diseharger Vtubes with the requisite' compressed air. Y Y

The discharger vents b4 for the air are preferably directed toward the lining; el so as to bring the air blast between the mass' of walled-up sugar and the lining in order that the disruptive action of the air on the sugar wall may be most effective'. i

Any suitable source of compressed air may be employed in connection withY the main supply conduit formed by the/central shaft c. Such connections, however', form novpart of the present invention as any suitable or well-known arrangement may be employed forV that purpose.Y Y.

rfhe operation oi the device is as Jfollows:

After the centrifugal separation of' the sugar crystals from the containing juice' is eected by the usual operation of the machine, the machine is slowed down or may be stopped altogether. f The supply of compressed air is then admitted to the mainconduit 'c whence it passes to the vertical discharger tubes in l sufficient volume to cause the wall of sugar tolbreak down or crumble and'fall upon the sloping 'bottombl" whence it is discharged through the central openings in the bottomj,

' What claim is y Y v l. In a centrifugal machine the'combination of a centrifugal basket and acentral shaft, said shaft being provided with an air passage and branch pipes leadingY from said air passage to the peripheral/[portions of the basket adjacent to the peripheral wall thereor, and vertical branch tubes provided with vents oroutlets for the escape of air intothe interior of the vwalled-upmass of sugar, substantially as described.

2. In a centrifugal machine a discharger device comprising essentially a main supply tube, a series or'Y Vvertical tubes arranged around the inside of the basket wall and provided with air outlets and connecting conduits for conducting the air from the main supply tube to said'vertical tubes,V substantiallyas described.

3. In a centrifugal machineV the combina-g Gopiesy of'this patent may be obtained for `supply conduit tion of a centrifugal basket, a series of airdischarging tubes arranged at lintervals around the periphery of ksaid basket, and a for. Vfurnishing a gbody of compressed air to said discharge tubes so as to`d'ifs'lruptV the sugar wall by suitably directed air blasts, substantially as described. 4c'. In! acentrifugal ymachine the combination of a centrifugal basket, a hollow central' basket-supporting shaft, a basket-supporting spider secured to the lower end oi said shaft and having Aradiating hollow arms in communication with the .interior or' saidfrbasket shaft, and concentrically arranged air discharging tubes in the peripheralfportion o said basket in communica-- tion with said radial spiderto receive compressed air therefromand having a series of discharge Vents for the escape of air intoV the peripheral portion or" the basket, substantially as described. I p 5. A-sel'i-lischarging basket for a ce`ny trifugal machine embracing in its construe? tion aseriesr of` verticalv tubes arranged around the. interior of the peripheral basket wall at a slight. distanceftherefrom to permit the insertion oi'a screen between said tubes andy said basketwall', and an air :supply conduit having communication r with said tubes to Vfurnish -a supply ofY compressed air thereto, said tubes having suitably' ar# ranged vents to .allow the escape of air' adjacent to "theinside Vfaces of said screen, sub` stantially as described. l

6; A self-.discharging basket for a ceirtrifugal machineV embracingv in its 'zonstrucf tion a vertical peripheral` wall,` a down@ wardly sloping annular bottom provided center, substantially asy described.

In witnessA whereof',y I have subscribed the above specification.

I Ansus H. 'enssouj ve cents each, byladdresksing the Commissioner of Patents.`

Washington, D. C. p 

